Jessica Biel attends the UK Film Premiere of "The A-Team " at the Empire Leicester Square on July 27, 2010 in London, England.

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Jessica Biel arrived to the London premiere of her movie The A-Team last night wearing a sheer red dress by Giamattista Valli, and while she looked stunning as ever from the waist up...I couldn't take my eyes off the black granny panties that made themselves visible beneath the transparent scarlet fabric!

It quite probably was intentional--stars with as much experience walking the red carpet as Biel rarely fail to realize that flashbulbs will make their undergarments visible--but I'm still miffed by the fact that she'd want to draw all eyes towards a pair of not-terribly-sexy briefs when they should be on that stunning red dress! A long black slip or a subtle lace or chiffon underlay would have made this entire look a Do, but I'm afraid as is, she's today's most famous resident of Don't-ville.

What do you ladies think of Jessica's Don't moment? Are you as put off by it as I am, or does it not bother you that much? What would you wear under a dress like this if it was your big red carpet moment? Discuss!